Installation de ubuntu sans partitioné

Bonjour ,
suite à l'installation d'ubuntu 7.10 je me suis rendu compte que je l'ai installé sur la partition qui contenait windows (xp familial sp2) et donc mes donnés.(peut importe pourquoi ou comment le fait est là:j'ai merdé)En gros je me moque d'avoir perdu windows mais c'est surtout mes donnés que je voudrais récupéré et photorec me donne de maigre résultat pour l'instant.

voici le retour de la commande: sudo fdisk-l

Disque /dev/sda: 122.9 Go, 122942324736 octets
255 heads, 63 sectors/track, 14946 cylinders
Units = cylindres of 16065 * 512 = 8225280 bytes
Disk identifier: 0x32443243

Périphérique Amorce Début Fin Blocs Id Système
/dev/sda1 * 1 14759 118551636 83 Linux
/dev/sda2 14760 14946 1502077+ 5 Extended
/dev/sda5 14760 14946 1502046 82 Linux swap / Solaris

Disque /dev/sdb: 81.9 Go, 81964302336 octets
255 heads, 63 sectors/track, 9964 cylinders
Units = cylindres of 16065 * 512 = 8225280 bytes
Disk identifier: 0xfc13fc13

Périphérique Amorce Début Fin Blocs Id Système
/dev/sdb1 * 1 9963 80027766 7 HPFS/NTFS

voici le retour de la commande cat /boot/grub/menu.lst


# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default 0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 3

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=cacd717b-0893-4356-a01e-09d1d42c701f ro

## Setup crashdump menu entries
## e.g. crashdump=1
# crashdump=0

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,0)

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Ubuntu 7.10, kernel 2.6.22-14-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=cacd717b-0893-4356-a01e-09d1d42c701f ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet

title Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
root (hd0,0)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=cacd717b-0893-4356-a01e-09d1d42c701f ro single
initrd /boot/initrd.img-2.6.22-14-generic

title Ubuntu 7.10, memtest86+
root (hd0,0)
kernel /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

Puis je esperer récupérer des donnés grâce à testdisk ou gpart a partir d'ubuntu ou dois je plutot essayer à partir d'un cd bootable style bartpe (testdisk semble trouver une partition ntfs sur le disk sda mais semble indiquer que la dite partition est endommagé comme vous pouvez le voir ci dessous)

TestDisk 6.6, Data Recovery Utility, February 2007
Christophe GRENIER <grenier@cgsecurity.org>
https://www.cgsecurity.org/

Disk /dev/sda - 122 GB / 114 GiB - CHS 14946 255 63
Partition Start End Size in sectors
D Linux 0 1 1 14758 254 63 237103272
D HPFS - NTFS 0 1 1 14944 254 63 240091362
D Linux 8 1 1 14766 254 63 237103272
D Linux Swap 14759 1 1 14945 254 63 3004092

TestDisk 6.6, Data Recovery Utility, February 2007
Christophe GRENIER <grenier@cgsecurity.org>
https://www.cgsecurity.org/

D HPFS - NTFS 0 1 1 14944 254 63 240091362



Can't open filesystem. Filesystem seems damaged.


il ya également un autre dd (sdb) ou apparait une partition ntfs puis je éventuellement l'utilisé pour faire un backup du mbr du dd sda???
par avance merci de votre aide et désolé pour ceux que ma maladresse exaspère